blob: a949b9df9a2c02a6887d2cb206b4cb874f5806a5 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
diff -up cups-1.4.8/filter/image-gif.c.CVE-2011-2896 cups-1.4.8/filter/image-gif.c
--- cups-1.4.8/filter/image-gif.c.CVE-2011-2896 2011-06-20 21:37:51.000000000 +0100
+++ cups-1.4.8/filter/image-gif.c 2011-08-19 11:33:37.547911212 +0100
@@ -648,11 +648,13 @@ gif_read_lzw(FILE *fp, /* I - File to
if (code == max_code)
{
- *sp++ = firstcode;
- code = oldcode;
+ if (sp < (stack + 8192))
+ *sp++ = firstcode;
+
+ code = oldcode;
}
- while (code >= clear_code)
+ while (code >= clear_code && sp < (stack + 8192))
{
*sp++ = table[1][code];
if (code == table[0][code])
@@ -661,8 +663,10 @@ gif_read_lzw(FILE *fp, /* I - File to
code = table[0][code];
}
- *sp++ = firstcode = table[1][code];
- code = max_code;
+ if (sp < (stack + 8192))
+ *sp++ = firstcode = table[1][code];
+
+ code = max_code;
if (code < 4096)
{
|
